Hydrant-casing.



J. DAY.

HYDRANT GASING.

MPLIGA'HON FILED MAB. 17, 1909.

Patented Sept. 28, 1909.

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JACOB DAY, OF ST. LOUIS, MISSOURI, ASSIGNOR 'IO JOHN C. KUPFERLE FOUNDRYCOM- PANY, OF S'I. LOUIS, MISSOURI, A CORPORATION.

HYDRANT- CASING.

Specication of Letters Patent. Patgnigd Sept. 28, 1909.

Application filed March 17, 1909. Serial No. 483,940.

To all 'whom it may concern:

Be it known that I, JACOB Dar, a citizen of the United States ofAmerica, residing at the cit-y of St. Louis, in the State of Missouri,have invented certain new and useful Improvements in Hydrant-Casings, otwhich the following is a full, clear, and exact description, referencebeing had to the accompanying drawings, forming part ot thisspecification.

My invention relates to a casing for hydrants and it has for its objectthe construction of a casing of this description in which the nozzlesection of the casing may act as a support for the casing beneath it,surrounding the waste pipe and service pipe, and to the former of whichthe nozzle section is secured.

It has heretofore been a universal practice, in so far as I am aware, inthe construction of hydrant casings to attach the nozzle section to thewaste pipe of the hydrant and to provide for the support of the casingbeneath this nozzle section by clamping the casing to the waste pipewithout there being any direct connection between the casing and thenozzle section, and in such practice there has been no adequate meansfor the support of the casing which frequently becomes loosened to sucha degree from the waste pipe as to permit of its descent around thewaste pipe and away from the nozzle section. By my improvement I obviateall liability of downward movement of the casing due to provision of aconstruction whereby the casing is expansible and is compressibly lockedto the nozzle section of the hydrant.

In the accompanying' drawings: Figure I is a side elevation ot ahydrant, constructed in accordance with my invention. Fig. II is anenlarged vertical section, taken through the waste pipe, nozzle sectionand casing of the hydrant. Fig. III is an enlarged inverted plan viewot' the nozzle section. Fig. IV is a top or plan view of the hydrantcasing in the compressed condition in which it appears when it is to beconnected to the nozzle section. F ig. V is an enlarged vertical sectionthrough the lower portion of the nozzle section. Fig. VI is an elevationof the hydrant casing as it appears in expanded condition previous tobeing placed in a position for application to the nozzle section.

Fig. VII is ak top or as shown in Fig. VI.

In the accompanying drawings: A designates the waste pipe ot' thehydrant provided at its upper end with a screw thread a.

B is a service pipe extending through the waste pipe, as usual, andconcentric therewith.

C is the nozzle section which is screwthreaded internally near its lowerend to provide for the attachment of said nozzle section to the wastepipe A.

rIhe parts thus tar specilically described are of common construction,and no invention per se is herewith claimed for them.

D designa-tes my Veripansible and compressible hydrant casing that isplaced around the waste pipe A beneath the nozzle section C and whichpreferably comprises a pair ot' sections l ot' semi-cylindrical shape incross section. These sections are united at their lower ends, only, byconnecting bolts 2 that pass through ears 3 at the eX- terior of thesections, as seen in Figs. I and VI. The edges of the sections bearagainst each other throughout the lower portion ot' the casing but areseparated from each other throughout the upper portion of the casing,this separation being provided for by tapering the sections, asillustrated in Figs. VI and VII, whereby longitudinal V-shaped slots Iare provided between the edges of the sections. Each casing section l isprovided at its upper end with an outwardly projecting lug 5, the lugsbeing preferably located diametrically opposite each other, as seen mostclearly in Figs. IV, VI and VII.

The nozzle section C that is designed as a plan view of the casing.support for the casing D is provided at its lower end, beneath thepoint at which it is secured to the waste pipe A, with a cylindricalenlargement 6. Within the enlargement G of the nozzle section is anannular groove 7 that is interrupted at two or more points bylongitudinal notches 8 that extend downwardly from said annular grooveto the lower end of the enlargement of the section. IVhen the nozzlesection C and the casing D, constructed in accordance with my invention,have been fitted to the waste pipe of a hydrant, the nozzle sectionbeing secured to said waste pipe in the usual manner and the casingbeing arranged loosely upon the pipe beneath the nozzle section, I

connect the casing to the nozzle section by the following procedure. Ifirst grasp the upper portion of the casing` and squeeze the upperportions of the sections of this casing toward each other as permitted,due to the existence of the slots between the sections. The upper end ofthe casing, which is, in a spread condition, of too great a diameter toenter the enlargement at the lower end of the nozzle section C, is bythe contraction of the upper end of the casing rendered of such diameteras to permit ot' its passage into the enlargement of the .nozzlesection. I then elevate the casing around the waste pipe so that thelugs 5 of ,the casing will pass through the notches 8 in the venlargeiment of the nozzle section and enter into the groove 7 in saidenlargement. The casing is then rotated around the waste pipe with theresult of causing the lugs 5 to be moved in the groove 7 awa-y fromthe'notchcs through which they entered said groove. hen the casing hasbeen .rotated to the desired degree, the grasp thereon is released andas a consequence the upper portion of the casing spreads outwardly withthe result of the upper end of the casing being tightly bound within theenlargement of the nozzle section of the casing, and being preventedfrom descent around the waste pipe due t0 the support therefor furnishedby the lugs 5 permanently lheld in the groove 7.

I claim:

l. In a hydrant casing, the combination with a pipe and a supportingsection at tached to said pipe, of an expansible and coinpressiblecasing having interlocking engageinentwith said supporting section.

2. In a hydrant casing, the combination with a pipe and a supportingsection attached to said pipe, of an expansible and compressiblesectional casing surroui'iding said pipe and having interlockingengagement with said supporting section.

3. In a..` hydrant casing, the combination with a pipe and a supportingsection attached to said pipe, of a casing surrounding said pipe andhaving a compressible and expansible upper portion having interlockingengagement with said supporting section.

4. In a hydrant casing, the combination with a pipe and a supportingsection attached to said pipe, of an expansible and compressible casingsurrounding said pipe and comprising a pair of sections separated.throughout their upper portions, and arranged t'or interlockingengagement with said supporting section.

5. In a hydrant, the combination with a pipe and a supporting sectionattached to said pipe, of an expansible and compressible casingsurrounding said pipe and having lugs at its upper end engaging saidsupporting section.

G. In a hydrant casing, the combination of a supporting section providednear its lower end with an internal groove and notches extendinglongitudinally thereof into said groove, and an expansible andconipressible casing having lugs adapted to enter said groove throughsaid notches and to be rotated within said groove to connect the casingto the supporting section.

7. In a hydrant casing, the combination of a supporting section havingan internal annular groove located near its lower end and provided withnotches extending yfrom the lower end of the section to said groove, anda sectional expansible and compressible casing having external lugsadapted to enter said groove through said notches.

S. In a hydrant casing, the combination of a supporting section havingan internal annular groove located near its lower end and provided withnotches extending from the lower end of the section to said groove, anda sectional casing having external lugs adapted to enter said casingthrough said notches, the upper portion of said casing beingcompressible to permit th-e entrance of the casing intosaid supportingsection, and expansible to provide for the spreading of the casing intoiirm engagement with the supporting section after the casing has beenentered into said section.

E. B. LINN, E. M. 'HARRINGTON

